What is the accurate speed of light ?

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A 299,547,143 km/ min
B 299,792,458 m/sec
C 905,432,345 m/hr
D 3*10^8 m/min

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Answer: B. 299,792,458 m/sec

This is because light always travels in a straight line with an accurate speed of 299,792,458 m/sec. Which matches option (b)

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What is the accurate speed of light ?

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